<template>
  <el-container class="fm2-container">
    <el-main class="fm2-main">
      <el-container>
        <el-aside width="250px">
          <div class="components-list">
            <template v-if="basicFields.length">
              <div class="widget-cate">基础字段</div>
              <draggable
                tag="ul"
                :list="basicComponents"
                v-bind="{
                  group: { name: 'people', pull: 'clone', put: false },
                  sort: false,
                  ghostClass: 'ghost',
                }"
                @end="handleMoveEnd"
                @start="handleMoveStart"
                :move="handleMove"
              >
                <li
                  v-if="basicFields.indexOf(item.type) >= 0"
                  class="form-edit-widget-label"
                  :class="{ 'no-put': item.type == 'divider' }"
                  v-for="(item, index) in basicComponents"
                  :key="index"
                >
                  <a>
                    <i class="icon iconfont" :class="item.icon"></i>
                    <span>{{ item.name }}</span>
                  </a>
                </li>
              </draggable>
            </template>

            <template v-if="advanceFields.length">
              <div class="widget-cate">高级字段</div>
              <draggable
                tag="ul"
                :list="advanceComponents"
                v-bind="{
                  group: { name: 'people', pull: 'clone', put: false },
                  sort: false,
                  ghostClass: 'ghost',
                }"
                @end="handleMoveEnd"
                @start="handleMoveStart"
                :move="handleMove"
              >
                <li
                  v-if="advanceFields.indexOf(item.type) >= 0"
                  class="form-edit-widget-label"
                  :class="{ 'no-put': item.type == 'table' }"
                  v-for="(item, index) in advanceComponents"
                  :key="index"
                >
                  <a>
                    <i class="icon iconfont" :class="item.icon"></i>
                    <span>{{ item.name }}</span>
                  </a>
                </li>
              </draggable>
            </template>

            <template v-if="layoutFields.length">
              <div class="widget-cate">布局字段</div>
              <draggable
                tag="ul"
                :list="layoutComponents"
                v-bind="{
                  group: { name: 'people', pull: 'clone', put: false },
                  sort: false,
                  ghostClass: 'ghost',
                }"
                @end="handleMoveEnd"
                @start="handleMoveStart"
                :move="handleMove"
              >
                <li
                  v-if="layoutFields.indexOf(item.type) >= 0"
                  class="form-edit-widget-label no-put"
                  v-for="(item, index) in layoutComponents"
                  :key="index"
                >
                  <a>
                    <i class="icon iconfont" :class="item.icon"></i>
                    <span>{{ item.name }}</span>
                  </a>
                </li>
              </draggable>
            </template>
          </div>
        </el-aside>
        <el-container class="center-container" direction="vertical">
          <el-header class="btn-bar" style="height: 45px;">
            <slot name="action"> </slot>
            <el-button
              v-if="upload"
              type="text"
              size="medium"
              icon="el-icon-upload2"
              @click="handleUpload"
              >导入JSON</el-button
            >
            <el-button
              v-if="clearable"
              type="text"
              size="medium"
              icon="el-icon-delete"
              @click="handleClear"
              >清空</el-button
            >
            <el-button
              v-if="preview"
              type="text"
              size="medium"
              icon="el-icon-view"
              @click="handlePreview"
              >预览</el-button
            >
            <el-button
              v-if="generateJson"
              type="text"
              size="medium"
              icon="el-icon-tickets"
              @click="handleGenerateJson"
              >生成JSON</el-button
            >
            <el-button
              v-if="generateCode"
              type="text"
              size="medium"
              icon="el-icon-document"
              @click="handleGenerateCode"
              >生成代码</el-button
            >
          </el-header>
          <el-main :class="{ 'widget-empty': widgetForm.list.length == 0 }">
            <widget-form
              v-if="!resetJson"
              ref="widgetForm"
              :data="widgetForm"
              :select.sync="widgetFormSelect"
            ></widget-form>
          </el-main>
        </el-container>

        <el-aside class="widget-config-container">
          <el-container>
            <el-header height="45px">
              <div
                class="config-tab"
                :class="{ active: configTab == 'widget' }"
                @click="handleConfigSelect('widget')"
              >
                字段属性
              </div>
              <div
                class="config-tab"
                :class="{ active: configTab == 'form' }"
                @click="handleConfigSelect('form')"
              >
                表单属性
              </div>
            </el-header>
            <el-main class="config-content">
              <widget-config
                v-show="configTab == 'widget'"
                :data="widgetFormSelect"
              ></widget-config>
              <form-config
                v-show="configTab == 'form'"
                :data="widgetForm.config"
              ></form-config>
            </el-main>
          </el-container>
        </el-aside>

        <cus-dialog
          :visible="previewVisible"
          @on-close="previewVisible = false"
          ref="widgetPreview"
          width="1000px"
          form
        >
          <generate-form
            insite="true"
            @on-change="handleDataChange"
            v-if="previewVisible"
            :data="widgetForm"
            :value="widgetModels"
            :remote="remoteFuncs"
            ref="generateForm"
          >
            <template v-slot:blank="scope">
              宽度：<el-input
                v-model="scope.model.blank.width"
                style="width: 100px"
              ></el-input>
              高度：<el-input
                v-model="scope.model.blank.height"
                style="width: 100px"
              ></el-input>
            </template>
          </generate-form>

          <template slot="action">
            <el-button type="primary" @click="handleTest">获取数据</el-button>
            <el-button @click="handleReset">重置</el-button>
          </template>
        </cus-dialog>

        <cus-dialog
          :visible="uploadVisible"
          @on-close="uploadVisible = false"
          @on-submit="handleUploadJson"
          ref="uploadJson"
          width="800px"
          form
        >
          <el-alert
            type="info"
            title="JSON格式如下，直接复制生成的json覆盖此处代码点击确定即可"
          ></el-alert>
          <div id="uploadeditor" style="height: 400px;width: 100%;">
            {{ jsonEg }}
          </div>
        </cus-dialog>

        <cus-dialog
          :visible="jsonVisible"
          @on-close="jsonVisible = false"
          ref="jsonPreview"
          width="800px"
          form
        >
          <div id="jsoneditor" style="height: 400px;width: 100%;">
            {{ jsonTemplate }}
          </div>

          <template slot="action">
            <el-button
              type="primary"
              class="json-btn"
              :data-clipboard-text="jsonCopyValue"
              >复制数据</el-button
            >
          </template>
        </cus-dialog>

        <cus-dialog
          :visible="codeVisible"
          @on-close="codeVisible = false"
          ref="codePreview"
          width="800px"
          form
          :action="false"
        >
          <div id="codeeditor" style="height: 500px; width: 100%;">
            {{ htmlTemplate }}
          </div>
        </cus-dialog>
      </el-container>
    </el-main>
  </el-container>
</template>

<script>
import Draggable from "vuedraggable";
import WidgetConfig from "./WidgetConfig";
import FormConfig from "./FormConfig";
import WidgetForm from "./WidgetForm";
import CusDialog from "./CusDialog";
import GenerateForm from "./GenerateForm";
import Clipboard from "clipboard";
import {
  basicComponents,
  layoutComponents,
  advanceComponents,
} from "./componentsConfig.js";
import { loadJs, loadCss } from "../util/index.js";
import request from "../util/request.js";
import generateCode from "./generateCode.js";

export default {
  name: "fm-making-form",
  components: {
    Draggable,
    WidgetConfig,
    FormConfig,
    WidgetForm,
    CusDialog,
    GenerateForm,
  },
  props: {
    preview: {
      type: Boolean,
      default: false,
    },
    generateCode: {
      type: Boolean,
      default: false,
    },
    generateJson: {
      type: Boolean,
      default: false,
    },
    upload: {
      type: Boolean,
      default: false,
    },
    clearable: {
      type: Boolean,
      default: false,
    },
    basicFields: {
      type: Array,
      default: () => [
        "input",
        "textarea",
        "number",
        "radio",
        "checkbox",
        "time",
        "date",
        "rate",
        "color",
        "select",
        "switch",
        "slider",
        "text",
      ],
    },
    advanceFields: {
      type: Array,
      default: () => ["blank", "imgupload", "editor", "cascader"],
    },
    layoutFields: {
      type: Array,
      default: () => ["grid"],
    },
  },
  data() {
    return {
      basicComponents,
      layoutComponents,
      advanceComponents,
      resetJson: false,
      widgetForm: {
        list: [],
        config: {
          labelWidth: 100,
          labelPosition: "right",
          size: "small",
        },
      },
      configTab: "widget",
      widgetFormSelect: null,
      previewVisible: false,
      jsonVisible: false,
      codeVisible: false,
      uploadVisible: false,
      remoteFuncs: {
        func_test(resolve) {
          setTimeout(() => {
            const options = [
              { id: "1", name: "1111" },
              { id: "2", name: "2222" },
              { id: "3", name: "3333" },
            ];

            resolve(options);
          }, 2000);
        },
        funcGetToken(resolve) {
          request
            .get("http://tools-server.xiaoyaoji.cn/api/uptoken")
            .then((res) => {
              resolve(res.uptoken);
            });
        },
        upload_callback(response, file, fileList) {
          console.log("callback", response, file, fileList);
        },
      },
      widgetModels: {},
      blank: "",
      htmlTemplate: "",
      jsonTemplate: "",
      uploadEditor: null,
      jsonCopyValue: "",
      jsonClipboard: null,
      jsonEg: `{
  "list": [
    {
      "type": "input",
      "name": "单行文本",
      "icon": "icon-input",
      "options": {
        "width": "100%",
        "defaultValue": "",
        "required": false,
        "dataType": "string",
        "pattern": "",
        "placeholder": "",
        "remoteFunc": "func_1540908864000_94322"
      },
      "key": "1540908864000_94322",
      "model": "input_1540908864000_94322",
      "rules": [
        {
          "type": "string",
          "message": "单行文本格式不正确"
        }
      ]
    },
    {
      "type": "textarea",
      "name": "多行文本",
      "icon": "icon-diy-com-textarea",
      "options": {
        "width": "100%",
        "defaultValue": "",
        "required": false,
        "pattern": "",
        "placeholder": "",
        "remoteFunc": "func_1540908876000_19435"
      },
      "key": "1540908876000_19435",
      "model": "textarea_1540908876000_19435",
      "rules": []
    }
  ],
  "config": {
    "labelWidth": 100,
    "labelPosition": "top",
    "size": "small"
  }
}`,
    };
  },
  mounted() {},
  methods: {
    handleGoGithub() {
      window.location.href = "https://github.com/GavinZhuLei/vue-form-making";
    },
    handleConfigSelect(value) {
      this.configTab = value;
    },
    handleMoveEnd(evt) {
      console.log("end", evt);
    },
    handleMoveStart({ oldIndex }) {
      console.log("start", oldIndex, this.basicComponents);
    },
    handleMove() {
      return true;
    },
    handlePreview() {
      console.log(this.widgetForm);
      this.previewVisible = true;
    },
    handleTest() {
      this.$refs.generateForm
        .getData()
        .then((data) => {
          this.$alert(data, "").catch((e) => {});
          this.$refs.widgetPreview.end();
        })
        .catch((e) => {
          this.$refs.widgetPreview.end();
        });
    },
    handleReset() {
      this.$refs.generateForm.reset();
    },
    handleGenerateJson() {
      this.jsonVisible = true;
      this.jsonTemplate = this.widgetForm;
      console.log(JSON.stringify(this.widgetForm));
      this.$nextTick(() => {
        const editor = ace.edit("jsoneditor");
        editor.session.setMode("ace/mode/json");

        if (!this.jsonClipboard) {
          this.jsonClipboard = new Clipboard(".json-btn");
          this.jsonClipboard.on("success", (e) => {
            this.$message.success("复制成功");
          });
        }
        this.jsonCopyValue = JSON.stringify(this.widgetForm);
      });
    },
    handleGenerateCode() {
      this.codeVisible = true;
      this.htmlTemplate = generateCode(JSON.stringify(this.widgetForm));
      this.$nextTick(() => {
        const editor = ace.edit("codeeditor");
        editor.session.setMode("ace/mode/html");
      });
    },
    handleUpload() {
      this.uploadVisible = true;
      this.$nextTick(() => {
        this.uploadEditor = ace.edit("uploadeditor");
        this.uploadEditor.session.setMode("ace/mode/json");
      });
    },
    handleUploadJson() {
      try {
        this.setJSON(JSON.parse(this.uploadEditor.getValue()));
        this.uploadVisible = false;
      } catch (e) {
        this.$message.error(e.message);
        this.$refs.uploadJson.end();
      }
    },
    handleClear() {
      this.widgetForm = {
        list: [],
        config: {
          labelWidth: 100,
          labelPosition: "right",
          size: "small",
          customClass: "",
        },
      };

      this.widgetFormSelect = {};
    },
    getJSON() {
      return this.widgetForm;
    },
    getHtml() {
      return generateCode(JSON.stringify(this.widgetForm));
    },
    setJSON(json) {
      this.widgetForm = json;

      if (json.list.length > 0) {
        this.widgetFormSelect = json.list[0];
      }
    },
    handleInput(val) {
      console.log(val);
      this.blank = val;
    },
    handleDataChange(field, value, data) {
      console.log(field, value, data);
    },
  },
  watch: {
    widgetForm: {
      deep: true,
      handler: function(val) {
        console.log(this.$refs.widgetForm);
      },
    },
  },
};
</script>

<style lang="scss">
.widget-empty {
  background-position: 50%;
}
</style>
